Modulo Calculator
Formula
remainder = dividend − (quotient × divisor)
The modulo operation finds the remainder after division. 17 mod 5 = 2 because 17 ÷ 5 = 3 remainder 2.
Frequently Asked Questions
What is 17 mod 5?
17 mod 5 = 2. (17 = 3×5 + 2)
What is modulo used for?
Programming (even/odd checks, circular arrays), cryptography, clock arithmetic, and more.